Measurement of the tt̅ production cross section in pp̅ collisions at √s = 1.96 TeV using kinematic characteristics of lepton+jets events

Abazov, V. M. ; Mondal, N. K. ; et., al (2007) Measurement of the tt̅ production cross section in pp̅ collisions at √s = 1.96 TeV using kinematic characteristics of lepton+jets events Physical Review D - Particles, Fields, Gravitation and Cosmology, 76 (9). 092007_1-092007_22. ISSN 1550-7998

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Official URL: http://prd.aps.org/abstract/PRD/v76/i9/e092007

Related URL: http://dx.doi.org/10.1103/PhysRevD.76.092007

Abstract

We present a measurement of the top quark pair production cross section in pp̅ collisions at √s=1.96 TeV utilizing 425 pb-1 of data collected with the D0 detector at the Fermilab Tevatron Collider. We consider the final state of the top quark pair containing one high-pT electron or muon and at least four jets. We exploit specific kinematic features of tt̅ events to extract the cross section. For a top quark mass of 175 GeV, we measure σtt̅ =6.4-1.2+1.3(stat)±0.7(syst)±0.4(lum) pb, in good agreement with the standard model prediction.

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